登录RollingFileAppender maxHistory

Question

我有配置：

 <appender name="file" class="ch.qos.logback.core.rolling.RollingFileAppender">
    <file>/logs/logFile.log</file>
    <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
        <pattern>${PATTERN}</pattern>
    </encoder>

    <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">

        <fileNamePattern>/logs/logFile.%d{yyyy-MM-dd}.%i.log</fileNamePattern>
        <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
            <maxFileSize>1MB</maxFileSize>
        </timeBasedFileNamingAndTriggeringPolicy>
        <maxHistory>2</maxHistory>
    </rollingPolicy>
</appender>

但是，日志在两天后没有删除，这会是什么问题呢？可能存在以下问题：

<fileNamePattern>/logs/logFile.%d{yyyy-MM-dd}.%i.log</fileNamePattern>

但我需要保存所有日志

Answer 1

请设置

<cleanHistoryOnStart>true</cleanHistoryOnStart>

检查一下。默认情况下，这是false。这将被添加到rollingPolicy标签下。

https://logback.qos.ch/manual/appenders.html